文献类型：期刊文献

英文题名：Ce0.3Zr0.7O1.88N0.12 solid solution as a stable photocatalyst for visible light driven water splitting

作者：Wang, Yu Lei[1];Jin, Jia Min[2,3];Li, Yu Hang[1];Wang, Xue Lu[1];Zhang, Bo[4,5];Gong, Xiwen[5];Wang, Hai Feng[2,3];Chen, Ai Ping[1];Zheng, Li Rong[6];Hu, P.[2,3,7];Yang, Hua Gui[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Ctr Computat Chem, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Res Inst Ind Catalysis, 130 Meilong Rd, Shanghai 200237, Peoples R China;[4]Fudan Univ, Dept Macromol Sci, State Key Lab Mol Engn Polymers, Shanghai 200438, Peoples R China;[5]Univ Toronto, Dept Elect & Comp Engn, 35 St George St, Toronto, ON M5S 1A4, Canada;[6]Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China;[7]Queens Univ Belfast, Sch Chem & Chem Engn, Belfast BT9 5AG, Antrim, North Ireland

年份：2018

卷号：224

起止页码：733

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：;EI(收录号：20174704421382);WOS:【SCI-EXPANDED(收录号:WOS:000424960700076)】；

基金：This work was financially supported by National Natural Science Foundation of China (21503079, 21333003, 21573068, 21603073 and 91534202), SRF for ROCS, SEM, Program of Shanghai Subject Chief Scientist (15XD1501300), Shu-Guang project (13SG30), Fundamental Research Funds for the Central Universities (WJ1616007, 222201718002, 222201514303 and 222201714001), China Postdoctoral Science Foundation Funded Project (2016M591615, 2017T100276 and 2016M601523), National Postdoctoral Program for Innovative Talents (BX201600050), "Chen Guang" project supported by Shanghai Municipal Education Commission and Shanghai Education Development Foundation (16CG31 and < gn4 > 13CG24 < /gn41 >), Shanghai Sailing Program (17YF1402900), Science and Technology Commission of Shanghai Municipality (14JC1490900). The authors also thank the crew of 1W1B beamline of Beijing Synchrotron Radiation Facility for the constructive assistance in the XAFS measurements and data analyses.

语种：英文

外文关键词：Photocatalysis; Ce0.3Zr0.7O1.88N0.12; Hydrogen evolution; Z-scheme; Stability

摘要：The search of efficient and stable photocatalysts for the evolution of hydrogen from water using solar energy is of great importance for material science today. Limited by the relatively inferior stability of oxynitrides, the availability of these visible-light-response materials in photocatalysis is still far below what is expected. Here we report a novel oxynitride Ce0.3Zr0.7O1.88N0.12 as an efficient and stable H-2-evolving photocatalyst under visible light irradiation, which can further enable overall water splitting by coupling with an O-2-evolving photocatalyst via Z-scheme. Experimental and theoretical results together reveal that the origin of the excellent activity and stability of Ce0.3Zr0.7O1.88N0.12 photocatalyst can be attributed to the improved separation rate of photoexcited charge carriers by surface and sub-surface oxygen vacancies. The present study provides a strategy to engineer efficient and stable photocatalysts, and the oxynitride mentioned above could act as a promising candidate of H-2-evolving photocatalyst for designing a prominent Z-scheme photocatalytic system.